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#1167: 02-03-2013, 06:49 AM
 
 TheBlackPearl
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Title: ^ The Family Truckster ^
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Location: Arlington WA
Car: 05 GT wag 5EAT Cryo'd stg3 BRNevo16g
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Are you guys talking about turning engine pistons? If you are, I'd think HSS would be just fine for that.
I love cutting with Carbide, but we do some high volume jobs with alot of material removal so it's worth it.
Sit down when you start pricing out Carbide k? :-)
I don't think I would trust a Grizzly lathe for that though, not enough repeatability there.
If you need some prototype type work done let me know, I'm ok with a lathe but I'm pretty good on a mill.
I could get one of our guys to make a program at least.

And as a rule of thumb, I leave .005-.010 for a final pass when milling, and for what I've done on the lathe .003-005 for a final has been working great.
Depending on the mat'l if you try to cut too little, it will just deflect the tooling and make a "spring pass.

Last edited by TheBlackPearl; 02-03-2013 at 07:01 AM..